This is something that is normally handled by Windows so it does look like a problem with your installation. If you click 'Help->Generate Error Report' from within the program we can see if there's anything obviously wrong.

Thanks for the help, I am experiencing other problems related to the Windows installation, i.e it is throwing BSOD on a regular basis, so I am going to do a fresh install and see if that cures the problems I am seeing

Hello, I'm also having this issue with Agent Ransack. It worked fine just yesterday, but for whatever reason it now gives me the error OP mentioned above. Additionally, none of the restricted context menu options work. I tried a full uninstall/reinstall, but no luck.

I am also getting this error in Agent Ransack in windows 10
Release Build 867 - 2017.03.02.44979 (x64)
I cant say when this started happening
Ive submitted an error report
Its annoying rather than fatal, beacuse the "restricted context menu" is all I need.
Strangely google gives me NO other references to this error message